Table 1.

Comparison of the patient characteristics between non-pCR and pCR groups.

	Non-pCR	pCR	p Value
	n = 238 (89.8%)	n = 27 (10.2%)
Age, years	49.2 ± 9.1	48.6 ± 6.2	0.975
Tumor size, mm	37.9 ± 21.3	22.1 ± 8.8	<0.001
ER expression, %	85.6 ± 20.5	75.3 ± 30.7	0.058
PR expression, %	34.3 ± 36.3	28.9 ± 38.9	0.386

Abbreviations: pCR—pathologic complete response; ER—estrogen receptor; PR—progesterone receptor.